As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON GROUND AFTER FLIGHT AND PASSENGER DEBOARDED, BETWEEN FLIGHT, AFTER APPROXIMATELY 20 MINUTES, SAW SMOKE WAS COMING FROM THE LEADING EDGE OF THE RIGHT HORIZONTAL STABILIZER. CREW VERIFIED COCKPIT SWITCH TO BE IN OFF POSITION. CREW EXPELLED GROUND FIRE EXTINGUISHER ON STABILIZER BOOT. AIRPORT FIRE DEPARTMENT ARRIVED AND DOUSED BOOT WITH WATER. HORIZONTAL STABILIZER BOOT REPLACED.